Vinegar eels are a GREAT easy to raise first food for many fish fry including Bettas, killfish, and many more! These guys are SUPER easy to culture, and raise so you always have live food available for your newborn fish, vinegar eels offer maximum nutrition, and will survive in your tank for days, allowing your fry to actually hunt them, as they would have to do in nature. Instructions are included to get your colony going quickly with very little effort. FREE SHIPPING!!!! Also check out our white worm listing for live food for larger fry!